P0455 2011 Nissan Altima Sedan Code - EVAP Control System Gross Leak Detected
Quick Answer
This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P0455 2011 Nissan Altima Sedan indicates EVAP Control System Gross Leak Detected.
- Common causes
- Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code P0455 2011 Nissan Altima Sedan Description
The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
What are the Possible Causes of the DTC P0455 2011 Nissan Altima Sedan?
- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking
How to Fix the DTC P0455 2011 Nissan Altima Sedan?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
There is a factory Nissan service bulletin to help diagnose the P0455 code:
Nissan Factory Service Bulletin OBDII Code P0455
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0455 2011 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0455 2011 Nissan Altima Sedan Code
1. What does OBDII code P0455 mean for a 2011 Nissan Altima Sedan?
- OBDII code P0455 in a 2011 Nissan Altima Sedan indicates a "EVAP Control System Gross Leak Detected" error.
2. What are the common symptoms of OBDII code P0455 in a 2011 Nissan Altima Sedan?
- Common symptoms of code P0455 include the check engine light turning on, a noticeable fuel odor, and potential difficulty starting the vehicle.
3. What are the possible causes of OBDII code P0455 in a 2011 Nissan Altima Sedan?
- The most common causes of code P0455 in a 2011 Nissan Altima Sedan are a loose or damaged gas cap, a leak in the fuel tank filler neck, a faulty EVAP system purge valve, or a cracked EVAP system hose.
4. How serious is OBDII code P0455 in a 2011 Nissan Altima Sedan?
- While code P0455 is not an immediate threat to the vehicle's drivability, it should be addressed promptly to prevent potential fuel system issues and to ensure the vehicle passes emissions tests.
5. How can I diagnose OBDII code P0455 in my 2011 Nissan Altima Sedan?
- Diagnosing code P0455 may involve checking the gas cap for tightness, inspecting visible hoses and components in the EVAP system, and using a smoke machine to detect leaks.
6. Can I continue driving my 2011 Nissan Altima Sedan with OBDII code P0455?
- It is generally safe to drive your vehicle with code P0455, but it is recommended to address the issue as soon as possible to prevent potential fuel system problems and ensure proper emissions control.
7. How do I repair OBDII code P0455 in my 2011 Nissan Altima Sedan?
- Repairing code P0455 may involve tightening or replacing the gas cap, repairing or replacing damaged hoses or components in the EVAP system, and clearing the code with an OBDII scanner.
8. Will OBDII code P0455 cause a decrease in fuel efficiency in my 2011 Nissan Altima Sedan?
- While code P0455 itself may not directly cause a decrease in fuel efficiency, addressing the underlying issue promptly can help maintain optimal fuel system performance and efficiency.
9. Can a DIY enthusiast fix OBDII code P0455 in a 2011 Nissan Altima Sedan?
- Depending on the cause of code P0455, some DIY enthusiasts may be able to address the issue by checking and tightening the gas cap, inspecting visible hoses, or replacing certain components in the EVAP system.
10. How much does it typically cost to repair OBDII code P0455 in a 2011 Nissan Altima Sedan at a mechanic?
- The cost of repairing code P0455 in a 2011 Nissan Altima Sedan can vary depending on the specific cause, but it may range from $100 to $500, including parts and labor.
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